Trace metal chemistry in arid-zone field soils amended with sewage sludge: II. Comparative study of the fulvic acid fraction

Journal Article · Mon Mar 01 04:00:00 EST 1982 · Soil Sci. Soc. Am. J.; (United States)

DOI:https://doi.org/10.2136/sssaj1982.03615995004600020010x· OSTI ID:5534577

Sposito, G; Holtzclaw, K M; LeVesque, C S; Johnston, C T

The elemental composition, infrared spectrum, and proton titration curve were determined for (i) the fulvic acid fraction of a Domino soil which had received applications of composted sewage for three years in a field experiment, and (ii) a commercially available fulvic acid extracted from a spodosol. Data showed that the Domino fulvic acid more resembled a typical sludge-derived fulvic acid than a fulvic acid extracted from natural soil organic matter. The distinguishing features of the Domino fulvic acid which led to this conclusion were: (i) a high total sulfur (S) content and the presence of sulfonyl groups, (ii) a significant content of anionic surfactants and S-containing amino acids, (iii) a low glucosamine/galactosamine ratio, and (iv) more than two classes of acidic functional groups. However, the Domino fulvic acid had a much larger content of carboxyl and other acidic functional groups than a typical sludge-derived fulvic acid, evidently because of partial oxidation of the sludge in the Domino soil.

• Research Organization: University of California, Riverside
• OSTI ID: 5534577
• Journal Information: Soil Sci. Soc. Am. J.; (United States), Journal Name: Soil Sci. Soc. Am. J.; (United States) Vol. 46:2; ISSN SSSJD
• Country of Publication: United States
• Language: English

Related Subjects

510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINES
AMINO ACIDS
ARID LANDS
CARBOHYDRATES
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
ELEMENTS
FIELD TESTS
FULVIC ACIDS
GLUCOSAMINE
GROUND DISPOSAL
HEXOSAMINES
HEXOSES
INFRARED SPECTRA
MANAGEMENT
METALS
MONOSACCHARIDES
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC MATTER
SACCHARIDES
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOILS
SPECTRA
SULFUR
SURFACTANTS
TESTING
TITRATION
TRACE AMOUNTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES